• Publications
  • Influence
Nonlinear self-excited oscillations of a ducted flame
  • A. Dowling
  • Physics, Engineering
    Journal of Fluid Mechanics
  • 10 September 1997
Self-excited oscillations of a confined flame, burning in the wake of a bluff-body flame-holder, are considered. These oscillations occur due to interaction between unsteady combustion and acoustic
Acoustic Analysis of Gas Turbine Combustors
Combustion instability has become a major issue for gas turbine manufacturers. Stricter emission regulations, particularly on nitrogen oxides, have led to the development of new combustion methods,
THE CALCULATION OF THERMOACOUSTIC OSCILLATIONS
Thermoacoustic oscillations occur in a wide variety of practical applications in which heat is supplied to an acoustic resonator. A simple geometry is investigated systematically to determine the
A kinematic model of a ducted flame
  • A. Dowling
  • Engineering, Physics
    Journal of Fluid Mechanics
  • 10 September 1999
A premixed ducted flame, burning in the wake of a bluff-body flame-holder, is considered. For such a flame, interaction between acoustic waves and unsteady combustion can lead to self-excited
The absorption of sound by perforated linings
The efficiency of a perforated screen as a sound absorber can be greatly increased when a rigid surface is placed behind the screen, essentially because the sound can then interact many times with
FEEDBACK CONTROL OF COMBUSTION OSCILLATIONS
▪ Abstract Early work and recent advances in feedback control of combustion oscillations are described. The physics of combustion oscillations, most commonly caused by a coupling between acoustic
The absorption of axial acoustic waves by a perforated liner with bias flow
The effectiveness of a cylindrical perforated liner with mean bias flow in its absorption of planar acoustic waves in a duct is investigated. The liner converts acoustic energy into flow energy
Modern Methods in Analytical Acoustics: Lecture Notes
I. The Classical Techniques of Wave Analysis.- 1 Complex Variable Theory.- 2 Generalized Functions.- 3 Fourier Transforms, Random Processes, Digital Sampling and Wavelets.- 4 Asymptotic Evaluation of
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